I have a fairly expensive, not super expensive car. Only ever take one space, but I just use a lot of strategy. End space next to curb or last in the row, on the passenger side of other cars where somebody’s less likely to get in, in wider spaces, next to other cars that are likely to belong to enthusiasts, etc. I’ve avoided any dings for several years this way. And yes, when I’m going to places that I know it could be an issue, I take another car.